== How to update the firmware in TellStick, TellStick Duo and TellStick Net ==

Please see below for you operating system.

TellStick must be from batch 11 or later to support upgrades.
All batches of TellStick Duo and TellStick Net support upgrades.

=== Windows ===

The service running must be stopped in order for the flasher utility to see the TellStick.[[BR]]
Open "Services". You find it under:[[BR]]
Start menu -> Administrative Tools -> Services[[BR]]
Find "TelldusService" in the list and press "Stop Service".[[BR]]

You can now run the flasher utility.

=== Mac OS X ===
Open the terminal.
Run the following command:
sudo launchctl unload /Library/LaunchDaemons/com.telldus.service.plist

You need to enter your password.

Now you can run the flasher utility.

=== Questions ===
Q: I lost the power while flashing my TellStick Net and now it is bricked, what can I do?[[BR]]
A: Don't worry. It will probably be possible to fix it without sending your device to us. [wiki:How_to_restore_a_bricked_TellStick_Net "Please see our guide"].